Calculate the pH at the equivalence point when 40 mL of a 0.050 M weak monoprotic acid (K a =6.3*10^ -5 ) is titrated with 0.050 M NaOH .

What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull

Match each statement with the state of matter it describes